| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous release agent for a toner feed roller molding die excellent in an opening stability of a surface cell of the toner feed roller, in which a demoldability is good, and there is little die smudge due to deposits. SOLUTION: The aqueous release agent for the toner feed roller molding die is used for a die forming of a toner feed roller used as a member carrying toner in a development unit of an electrophotographic device. The aqueous release agent contains (A) wax in which the contact angle of water is≥70°and≤100°, (B) wax in which the contact angle of water is≥5°and≤15°, and (C) silicone oil. The content of the (B) wax to all the waxes (A+B) 100 parts by mass in the aqueous release agent is≥30 parts by mass and≤60 parts by mass, and the content of the (C) silicone oil to the aqueous release agent (A+B+C) 100 parts by mass is≥15 parts by mass and≤45 parts by mass. COPYRIGHT: (C)2010,JPO&INPIT |
